Séminaires : Séminaire d'Analyse et Géométrie

Equipe(s) :
Responsables :O. Biquard, A. Deruelle, I. Itenberg, X. Ma
Email des responsables : {olivier.biquard, alix.deruelle, ilia.itenberg, xiaonan.ma}@imj-prg.fr
Salle : 15–25.502
Adresse :Jussieu
Description

Orateur(s) Andrea Seppi - Université Grenonme Alpes,
Titre Rigidity of minimal Lagrangian di eomorphisms between spherical cone surfaces
Date01/02/2022
Horaire14:00 à 15:00
Diffusion
RésumeMinimal Lagrangian maps play an important role in Teichmïller theory, with important existence and uniqueness results for hyperbolic surfaces obtained by Labourie, Schoen, Bonsante-Schlenker, Toulisse and others. In positive curvature, it is thus natural to ask whether one can find minimal Lagrangian diffeomorphisms between two spherical surfaces with cone points. In this talk we will show that the answer is negative, unless the two surfaces are isometric. As an application, we obtain a generalization of Liebmann's theorem for branched immersions of constant curvature in Euclidean space. This is joint work with Christian El Emam.
Salle15–25.502
AdresseJussieu
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